Plastic cement applicator



Nov. 6, 1956 J. JOHNSON PLASTIC CEMENT APPLICATOR Filed Dec. 12, 1955INVENTU/L JOHN JOHNS O N ilnited tates Patent PLASTIC CEMENT APPLICATGRJohn Johnson, San Francisco, Calif.

Application December 12, 1955, Serial No. 552,351

3 Claims. (Cl. 222-407) The present invention relates to a new andimproved article of manufacture, comprising an economically produced andeflicient plastic cement container and applicator, having highlyeflicient and improved means adapted to operate as a container and toolto dispense and apply precisely controlled quantities of cement directlyonto the job, either broadly on a flat surface or into a comparativelyinaccessible and narrow space, to effectively connect and seal againstmoisture, and to automatically self-seal a dispensing spout, wherebyflat surfaces, crevices and the like effectively may be sealed againstmoisture with a minimum expenditure of time and labor, and the cementconstantly retained available for instant service.

The primary object of the present invention is to provide a new andimproved article of manufacture comprising a plastic cement containerand applicator having improved means adapted to operate as a container,dispenser, and tool in applying a plastic cement.

Another object is to provide a new and improved applicator of thecharacter set forth, having an improved self-sealing dispensing spoutadapted to regulate and control the quantity of cement being dispensedor applied.

A further object is to provide an applicator of the type described,having a greatly simplified and economically produced and readilyoperated construction, and a maximum eificiency.

The improvement comprises the applicator disclosed in the drawingsforming a part of the present application, in which Figure 1 is a topplan view of the applicator, disclosing the first step in its formation;

Figure 2 is a similar view, illustrating the second step;

Figure 3 is a broken, partly sectional view of the plastic, imperviousenvelope, with the pointed dispensing end or spout of the device fullyformed; and

Figure 4 is a broken elevation of the dispensing end of the applicator,filled with a cement to be dispensed and applied.

Referring to the drawings, the numeral 2 is used to designate in generala preferably rectangular fiat envelope, of a flexible imperviousmaterial, having an open end 4 folded diagonally from one corner thereofand flatly upon the envelope 2 with said open end 4 aligned and matchingwith an adjacent side end as at 6, thus forming an apex, or pointedspout 8, provided With a plurality of graduated and preferably slantedindicia 10, arranged in regular parallel spaced relation from said spout8.

A flat, flexible, transparent and adhesive plastic strip or sheet 12 isplaced under the folded end of the envelope 2, and with one end parallelwith the fold 5, with the opposite end of said strip 12 extendeddiagonally beyond the opposite side of said open end 4 to permit saidopposite end to be folded back over the open end 4, spout 8, and thetransverse edge 14 of the envelope 2 which has been thus foldedtransverse by the diagonal fold 5,

thereby effectively sealing the open end 4, spout 8 and flap or edge 14,as disclosed in Figure 3.

When the envelope 2 is filled with a plastic cement to be dispensed, theend opposite the folded end 5 is closed and sealed, thus rounding theenvelope 2 into a cylindrical tube, which reduces the width of thedevice and also forms a conical end terminating in the dispensing spout8, which arrangement will facilitate the introduction of said spout intocomparatively inaccessible narrow cracks or apertures, and consequentlyefliciently apply cement therein.

In operation, the tip of the spout 8 is cut off, with knife or scissors,at the first or smallest index or graduation 10, which will provide asmall opening from which may be dispensed and applied a narrow,string-like thread of cement for introduction into a comparativelyinaccessible aperture or crevice to be sealed. The regulation of handpressure upon the tube or applicator obviously will control and regulatethe quantity and speed of dispensing and application of the cementcommensurate with the immediate requirement. Large quantities of cementmay be extruded by cutting the spout 8 at successive index lines 10, andflat applications of some width, for flat surfaces, may be provided byturning the opened spout 8 sideways and slanted with the slanted indexselected.

After extrusion of cement, the spout 8 is self-sealed by a slighthardening into a tough, resilient plug of the material immediatelyinside of the spout tip or opening, so that no extra cap or closure isrequired to retain the plastic quality of the cement within theinterior.

It is obvious from the foregoing that the applicator readily operates asa dispenser, applicator, and tool, having improved means adapted tocontrol and regulate the amount of cement required for directapplication to the job. Thus the necessity for other tools, trowels, andvarious equipment at present required in sealing roofs and other leakycracks and apertures, is eliminated, with a consequent saving of timeand labor, and a definite increase in efliciency.

Having described my invention, I claim:

1. In a new article of manufacture, a plastic cement applicatorcomprising an impervious flexible envelope having an open end foldedflatly upon itself from one corner thereof and matching with an adjacentedge of said envelope, and forming a pointed spout aligned with one sideedge of said envelope; and a transparent adhesive strip mounted aroundsaid folded end and spout and sealing said spout, and said folded endflatly against said envelope.

2. In a new article of manufacture, a plastic cement applicatorcomprising an impervious and flexible rectangular envelope having anopen end folded diagonally from one corner of said envelope, matching anadjacent edge of the same, and forming a pointed spout aligned with saidedge; a plurality of graduated indicia on said pointed spout; and atransparent adhesive strip folded around said pointed spout and foldedopen end and sealing the same flatly against said envelope.

3. In a new article of manufacture, a plastic cement applicatorcomprising a rectangular envelope of flexible plastic material having anopen end folded diagonally upon itself from one corner thereof, withsaid open end matching an adjacent side edge of said envelope andforming a pointed spout aligned with said side edge; a plurality ofslanted and graduated indicia on the apex of said pointed spout; and atransparent adhesive strip mounted around said pointed spout, and aroundsaid folded corner and sealing said folded corner flatly against saidenvelope.

References Cited in the file of this patent UNITED STATES PATENTS1,070,790 Falk Aug. 19, 1913

